/*
 * This file is part of Linode Manager Classic.
 *
 * Linode Manager Classic is free software: you can redistribute it and/or modify
 * it under the terms of the GNU General Public License as published by
 * the Free Software Foundation, either version 3 of the License, or
 * (at your option) any later version.
 *
 * Linode Manager Classic is distributed in the hope that it will be useful,
 * but WITHOUT ANY WARRANTY; without even the implied warranty of
 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
 * GNU General Public License for more details.
 *
 * You should have received a copy of the GNU General Public License
 * along with Linode Manager Classic.  If not, see <https://www.gnu.org/licenses/>.
 */

import { settings, elements, apiGet, apiPost, parseParams, regionNames, setupHeader } from "/global.js";

(function()
{
	// Element names specific to this page
	elements.cloneButton = "clone-button";
	elements.label = "label";
	elements.location = "location";
	elements.newLabel = "new-label";
	elements.size = "size";
	elements.volumeLabel = "volume-label";

	// Data recieved from API calls
	var data = {};

	// Static references to UI elements
	var ui = {};
	ui.cloneButton = {};
	ui.label = {};
	ui.location = {};
	ui.newLabel = {};
	ui.size = {};
	ui.volumeLabel = {};

	// Callback for volume API call
	var displayVolume = function(response)
	{
		// Set page title and header stuff
		document.title += " // " + response.label;
		ui.volumeLabel.innerHTML = response.label;

		// Populate info table
		ui.label.innerHTML = response.label;
		ui.size.innerHTML = response.size;
		if (regionNames[response.region])
			ui.location.innerHTML = regionNames[response.region];
		else
			ui.location.innerHTML = response.region;

		ui.cloneButton.disabled = false;
	};

	// Click handler for clone button
	var handleClone = function(event)
	{
		if (event.currentTarget.disabled)
			return;

		var req = {
			"label": ui.newLabel.value
		};

		apiPost("/volumes/" + data.params.vid + "/clone", req, function(response)
		{
			location.href = "/volumes";
		});
	};

	// Initial setup
	var setup = function()
	{
		// Parse URL parameters
		data.params = parseParams();

		// We need a volume ID, so die if we don't have it
		if (!data.params.vid) {
			alert("No volume ID supplied!");
			return;
		}

		setupHeader();

		// Update links on page to include proper volume ID
		var anchors = document.getElementsByTagName("a");
		for (var i = 0; i < anchors.length; i++)
			anchors[i].href = anchors[i].href.replace("vid=0", "vid=" + data.params.vid);

		// Get element references
		ui.cloneButton = document.getElementById(elements.cloneButton);
		ui.label = document.getElementById(elements.label);
		ui.location = document.getElementById(elements.location);
		ui.newLabel = document.getElementById(elements.newLabel);
		ui.size = document.getElementById(elements.size);
		ui.volumeLabel = document.getElementById(elements.volumeLabel);

		// Attach event handlers
		ui.cloneButton.addEventListener("click", handleClone);

		// Get data from API
		apiGet("/volumes/" + data.params.vid, displayVolume, null);
	};

	// Attach onload handler
	window.addEventListener("load", setup);
})();